Dr Z Amps are officially UL/CSA certified! They're also CE
certified for the rest of the world. To our knowledge, they are
the only boutique amp manufacturer with models that are UL certified.
It's a very long and expensive ordeal and rightfully so, they are quite
proud to offer amps that are tested and certified for safety,
reliability, and durability.

Dr. Z Amplification are tested and spot checked quarterly by ETL to
insure their building methods and materials meet the strict
requirements for certification.
Other than safety, why is this important? UL
Certification also requires a manufacturer to build for durability and
reliability. The chassis, solder points, transformers, etc have
to meet certain criteria, such as:

Vibration : Such as withstanding a bumpy road in the back
of your car. Shock Resistance #1 : Shock, as in impact, not
electricity. Not all amps survive a fall or accidental drop.Shock
Resistance #2 : Ok, now it's about electricity! :)And the list goes on, but you get the picture.

The point is, it's truly rare, if not non-existant, that a hand-wired
custom amplifier company puts themselves out there to be scrutinized by
firms who literally spcialize in looking for reasons to shut them
down. In our opinion, that speaks volumes about Dr. Z and their
build quality. It gives us confidence in them, and in our
opinion, it should you as well.

If you would like more information about Dr. Z's certification, please
click the image below to read the report.

-Humbucker Music

DR. Z AMPLIFIERS - 3 YEAR
WARRANTY

All Dr. Z Amps come with a 3 year limited warranty. This warranty
covers any defects in manufacturing, and/or internal
components. Like all amp builders, items such as
tubes and speakers aren't covered for the full duration, but those do
come with a 90 day warranty.

For more information concerning Dr. Z Amplifiers and their warranty,
feel free to contact us. We'll be happy to assist!